PHP如何将查询结束导出Excel

<form action="user.php" method="POST">
用户编号：<input type="text" name="u_num" size="12" value="<?php echo $_POST['u_num']; ?>" />  
用户名：<input type="text" name="u_name" size="20" value="<?php echo $_POST['u_name']; ?>" />  
<input type="submit" name="sub" value=" 查询 " />      
<input type="button" value="导出Excel" />
</form>

<table>
<tr>
<td>用户编号</td>
<td>用户名</td>
</tr>

<?php
if(!empty($_POST["u_num"])){
$u_num = "where u_id='"."{$_POST['u_num']}"."'";
}

$sql = "select * from msd.dbo.user";

$query = sqlsrv_query($conn,$sql);
if( $query === false) {
    die( print_r( sqlsrv_errors(), true) );
}

while($row = sqlsrv_fetch_array($query)) {
echo "<tr><td>$row[0]</td><td>$row[1]</td></tr>";
}

sqlsrv_free_stmt( $query);
sqlsrv_close( $conn);
?>

</table>

PHPexcel 导出 汇出
[解决办法]

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$objPHPExcel>getActiveSheet()
->setCellValue()操作的结果是返回 PHPExcel_Worksheet 对象，把前面的echo去掉吧

去掉echo后，是不报错了，但while循环好像就失效了，导出的结果就只有一条数据。

->setCellValue('A2', convertUTF8($row[0]))
->setCellValue('B2', convertUTF8($row[1]))
->setCellValue('

C2', convertUTF8($row[2]))
->setCellValue('D2', convertUTF8($row[3]))
->setCellValue('E2', convertUTF8($row[4]))
->setCellValue('F2', convertUTF8($row[5]))
->setCellValue('G2', convertUTF8($row[6]))
->setCellValue('H2', convertUTF8($row[7]))
->setCellValue('I2', convertUTF8($row[8]))
->setCellValue('J2', convertUTF8($row[9]))
->setCellValue('K2', convertUTF8($row[10]))
->setCellValue('L2', convertUTF8($row[11]));

标红的部分循环中没有更改，所以会覆盖之前单元格的值。

不太明白你的意思，那我应该怎么改呢？

$i = 2;
while($row = sqlsrv_fetch_array($query)) {
$objPHPExcel->getActiveSheet()
        ->setCellValue('A'.$i, convertUTF8($row[0]))
        ->setCellValue('B'.$i, convertUTF8($row[1]))
        ->setCellValue('C'.$i, convertUTF8($row[2]))
        ->setCellValue('D'.$i, convertUTF8($row[3]))
        ->setCellValue('E'.$i, convertUTF8($row[4]))
        ->setCellValue('F'.$i, convertUTF8($row[5]))
        ->setCellValue('G'.$i, convertUTF8($row[6]))
        ->setCellValue('H'.$i, convertUTF8($row[7]))
        ->setCellValue('I'.$i, convertUTF8($row[8]))
        ->setCellValue('J'.$i, convertUTF8($row[9]))
        ->setCellValue('K'.$i, convertUTF8($row[10]))
        ->setCellValue('L'.$i, convertUTF8($row[11]));
$i++;
}